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1. (WO2018076676) COMPOSITE FILTER CARTRIDGE, COMPOSITE FILTER CARTRIDGE ASSEMBLY FOR WATER PURIFIER AND WATER PURIFIER

Pub. No.:    WO/2018/076676    International Application No.:    PCT/CN2017/085596
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Wed May 24 01:59:59 CEST 2017
IPC: C02F 9/02
B01D 29/58
Applicants: MIDEA GROUP CO., LTD.
美的集团股份有限公司
Inventors: ZHANG, Xingzhi
张兴致
Title: COMPOSITE FILTER CARTRIDGE, COMPOSITE FILTER CARTRIDGE ASSEMBLY FOR WATER PURIFIER AND WATER PURIFIER
Abstract:
Disclosed are a composite filter cartridge (100), a composite filter cartridge assembly comprising the composite filter cartridge (100), and a water purifier. The filter cartridge (100) comprises a pretreatment filter cartridge (110), a fine filter cartridge (120) and an activated carbon filter cartridge (130) that are arranged in sequence from outside to inside. The fine filter cartridge (120) comprises a first collector pipe (121) and a fine filter membrane (122). The activated carbon filter cartridge (130) is disposed inside the collector pipe (121), and the activated carbon filter cartridge (130) comprises a second collector pipe (131) and activated carbon (132). The outer circumferential wall, except the lower end, of the second collector pipe (131) is spaced apart from the inner circumferential wall of the first collector pipe (121). The activated carbon (132) is disposed inside the second collector pipe (131), and the outer circumferential wall, except the lower end, of the activated carbon (132) is spaced apart from the inner circumferential wall of the second collector pipe (131). The lower end of the activated carbon (132) is connected to the second collector pipe (131) in a sealed manner. A water outlet hole (132a) running through in an axial direction is formed in the activated carbon (132), and the water outlet hole (132a) is closed at the upper end.